$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-openmath.git /var/lib/mock/f38-build-side-42-init-devel-756392-27676/root/chroot_tmpdir/scmroot/gap-pkg-openmath
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-756392-27676/root/chroot_tmpdir/scmroot/gap-pkg-openmath'...
$ git fetch origin bb2e48f743580e4819f77ca0c3e31894fad23794:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-openmath
 * [new ref]         bb2e48f743580e4819f77ca0c3e31894fad23794 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb2e48f Version 11.5.3.